Grossmunster Church in Zurich where Grebel attended while studying the Bible with Zwingli.

The Radical Reformation

The Radical Reformation consists of the most diverse group of theologians of any of the other movements. In fact, the only characteristic that all radical reformers share is their rejection of the Catholic Church and the protestant churches. In his classic, The Radical Reformation, George Huntston Williams classified the radicals as Anabaptists, Spiritualists, or Evangelical Rationalists. Anabaptists such as Menno Simons and Balthasar HÃ¼bmaier were pacifists who rejected infant baptism and were strict Biblicists. Caspar Schwenkfeld was a Spiritualist who emphasized the inner witness of the Spirit to such an extent that he rejected the â€œexternal mattersâ€